Condensed Consolidating Guarantor Financial Information - Condensed Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 570	$ 1,062
Restricted cash and cash equivalents	100	121
Accounts receivable, net	998	755
Intercompany receivables	0	0
Prepaid expenses	111	89
Income taxes receivable	36	13
Other	171	39
Current assets of discontinued operations	0	1,478
Total current assets	1,986	3,557
Intangibles and Other Assets:
Investments in subsidiaries	0	0
Goodwill	5,190	5,218	$ 5,280
Brands	4,890	4,848
Management and franchise contracts, net	909	963
Other intangible assets, net	433	447
Property and equipment, net	353	341
Deferred income tax assets	113	82
Other	434	408
Intangibles and other assets of discontinued operations	0	10,347
Total intangibles and other assets	12,322	22,654
Total assets	14,308	26,211
Current Liabilities:
Accounts payable, accrued expenses and other	2,150	1,821
Intercompany payables	0	0
Current maturities of long-term debt	46	33
Income taxes payable	12	56
Current liabilities of discontinued operations	0	774
Total current liabilities	2,208	2,684
Long-term debt	6,556	6,583
Deferred revenues	97	42
Deferred income tax liabilities	1,063	1,778
Liability for guest loyalty program	839	889
Other	1,470	1,492
Non-current liabilities of discontinued operations	0	6,894
Total liabilities	12,233	20,362
Equity:
Total Hilton stockholders' equity	2,072	5,899
Noncontrolling interests	3	(50)
Total equity	2,075	5,849	$ 5,951	$ 4,714
Total liabilities and equity	14,308	26,211
Eliminations [member]
Current Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Accounts receivable, net	0	0
Intercompany receivables	(40)	(42)
Prepaid expenses	(3)	(3)
Income taxes receivable	(24)	(17)
Other	0	0
Current assets of discontinued operations		(24)
Total current assets	(67)	(86)
Intangibles and Other Assets:
Investments in subsidiaries	(20,326)	(35,661)
Goodwill	0	0
Brands	0	0
Management and franchise contracts, net	0	0
Other intangible assets, net	0	0
Property and equipment, net	0	0
Deferred income tax assets	(122)	(179)
Other	0	0
Intangibles and other assets of discontinued operations		(10)
Total intangibles and other assets	(20,448)	(35,850)
Total assets	(20,515)	(35,936)
Current Liabilities:
Accounts payable, accrued expenses and other	(3)	(3)
Intercompany payables	(40)	(42)
Current maturities of long-term debt	0	0
Income taxes payable	(24)	(17)
Current liabilities of discontinued operations		(24)
Total current liabilities	(67)	(86)
Long-term debt	0	0
Deferred revenues	0	0
Deferred income tax liabilities	(122)	(179)
Liability for guest loyalty program	0	0
Other	0	0
Non-current liabilities of discontinued operations		(10)
Total liabilities	(189)	(275)
Equity:
Total Hilton stockholders' equity	(20,326)	(35,661)
Noncontrolling interests	0	0
Total equity	(20,326)	(35,661)
Total liabilities and equity	(20,515)	(35,936)
Parent [member]
Current Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Accounts receivable, net	0	0
Intercompany receivables	0	0
Prepaid expenses	0	0
Income taxes receivable	0	0
Other	0	0
Current assets of discontinued operations		0
Total current assets	0	0
Intangibles and Other Assets:
Investments in subsidiaries	2,081	5,889
Goodwill	0	0
Brands	0	0
Management and franchise contracts, net	0	0
Other intangible assets, net	0	0
Property and equipment, net	0	0
Deferred income tax assets	6	10
Other	0	0
Intangibles and other assets of discontinued operations		0
Total intangibles and other assets	2,087	5,899
Total assets	2,087	5,899
Current Liabilities:
Accounts payable, accrued expenses and other	15	0
Intercompany payables	0	0
Current maturities of long-term debt	0	0
Income taxes payable	0	0
Current liabilities of discontinued operations		0
Total current liabilities	15	0
Long-term debt	0	0
Deferred revenues	0	0
Deferred income tax liabilities	0	0
Liability for guest loyalty program	0	0
Other	0	0
Non-current liabilities of discontinued operations		0
Total liabilities	15	0
Equity:
Total Hilton stockholders' equity	2,072	5,899
Noncontrolling interests	0	0
Total equity	2,072	5,899
Total liabilities and equity	2,087	5,899
Guarantor Subsidiaries [member]
Current Assets:
Cash and cash equivalents	18	22
Restricted cash and cash equivalents	10	9
Accounts receivable, net	702	484
Intercompany receivables	0	0
Prepaid expenses	24	21
Income taxes receivable	60	30
Other	15	5
Current assets of discontinued operations		0
Total current assets	829	571
Intangibles and Other Assets:
Investments in subsidiaries	2,081	5,889
Goodwill	3,824	3,824
Brands	4,405	4,404
Management and franchise contracts, net	634	716
Other intangible assets, net	283	296
Property and equipment, net	67	62
Deferred income tax assets	0	0
Other	183	213
Intangibles and other assets of discontinued operations		12
Total intangibles and other assets	11,477	15,416
Total assets	12,306	15,987
Current Liabilities:
Accounts payable, accrued expenses and other	1,229	1,091
Intercompany payables	0	0
Current maturities of long-term debt	0	0
Income taxes payable	0	0
Current liabilities of discontinued operations		77
Total current liabilities	1,229	1,168
Long-term debt	0	0
Deferred revenues	97	42
Deferred income tax liabilities	1,180	1,919
Liability for guest loyalty program	839	889
Other	581	490
Non-current liabilities of discontinued operations		0
Total liabilities	3,926	4,508
Equity:
Total Hilton stockholders' equity	8,380	11,479
Noncontrolling interests	0	0
Total equity	8,380	11,479
Total liabilities and equity	12,306	15,987
Non-Guarantor Subsidiaries [member]
Current Assets:
Cash and cash equivalents	550	1,037
Restricted cash and cash equivalents	29	25
Accounts receivable, net	275	264
Intercompany receivables	40	42
Prepaid expenses	84	65
Income taxes receivable	0	0
Other	155	33
Current assets of discontinued operations		1,502
Total current assets	1,133	2,968
Intangibles and Other Assets:
Investments in subsidiaries	0	0
Goodwill	1,366	1,394
Brands	485	444
Management and franchise contracts, net	273	247
Other intangible assets, net	149	150
Property and equipment, net	266	267
Deferred income tax assets	124	82
Other	200	153
Intangibles and other assets of discontinued operations		10,345
Total intangibles and other assets	2,863	13,082
Total assets	3,996	16,050
Current Liabilities:
Accounts payable, accrued expenses and other	633	414
Intercompany payables	0	0
Current maturities of long-term debt	14	7
Income taxes payable	36	73
Current liabilities of discontinued operations		721
Total current liabilities	683	1,215
Long-term debt	240	241
Deferred revenues	0	0
Deferred income tax liabilities	0	38
Liability for guest loyalty program	0	0
Other	656	713
Non-current liabilities of discontinued operations		6,900
Total liabilities	1,579	9,107
Equity:
Total Hilton stockholders' equity	2,414	6,993
Noncontrolling interests	3	(50)
Total equity	2,417	6,943
Total liabilities and equity	3,996	16,050
HOC [member]
Current Assets:
Cash and cash equivalents	2	3
Restricted cash and cash equivalents	61	87
Accounts receivable, net	21	7
Intercompany receivables	0	0
Prepaid expenses	6	6
Income taxes receivable	0	0
Other	1	1
Current assets of discontinued operations		0
Total current assets	91	104
Intangibles and Other Assets:
Investments in subsidiaries	8,713	12,583
Goodwill	0	0
Brands	0	0
Management and franchise contracts, net	2	0
Other intangible assets, net	1	1
Property and equipment, net	20	12
Deferred income tax assets	105	167
Other	31	30
Intangibles and other assets of discontinued operations		0
Total intangibles and other assets	8,872	12,793
Total assets	8,963	12,897
Current Liabilities:
Accounts payable, accrued expenses and other	256	293
Intercompany payables	40	42
Current maturities of long-term debt	0	0
Income taxes payable	0	0
Current liabilities of discontinued operations		0
Total current liabilities	296	335
Long-term debt	983	981
Deferred revenues	0	0
Deferred income tax liabilities	0	0
Liability for guest loyalty program	0	0
Other	233	277
Non-current liabilities of discontinued operations		4
Total liabilities	1,512	1,597
Equity:
Total Hilton stockholders' equity	7,451	11,300
Noncontrolling interests	0	0
Total equity	7,451	11,300
Total liabilities and equity	8,963	12,897
HWF Issuers [member]
Current Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Accounts receivable, net	0	0
Intercompany receivables	0	0
Prepaid expenses	0	0
Income taxes receivable	0	0
Other	0	0
Current assets of discontinued operations		0
Total current assets	0	0
Intangibles and Other Assets:
Investments in subsidiaries	7,451	11,300
Goodwill	0	0
Brands	0	0
Management and franchise contracts, net	0	0
Other intangible assets, net	0	0
Property and equipment, net	0	0
Deferred income tax assets	0	2
Other	20	12
Intangibles and other assets of discontinued operations		0
Total intangibles and other assets	7,471	11,314
Total assets	7,471	11,314
Current Liabilities:
Accounts payable, accrued expenses and other	20	26
Intercompany payables	0	0
Current maturities of long-term debt	32	26
Income taxes payable	0	0
Current liabilities of discontinued operations		0
Total current liabilities	52	52
Long-term debt	5,333	5,361
Deferred revenues	0	0
Deferred income tax liabilities	5	0
Liability for guest loyalty program	0	0
Other	0	12
Non-current liabilities of discontinued operations		0
Total liabilities	5,390	5,425
Equity:
Total Hilton stockholders' equity	2,081	5,889
Noncontrolling interests	0	0
Total equity	2,081	5,889
Total liabilities and equity	$ 7,471	$ 11,314